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        Automated Track Inspection Program (ATIP)
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                Geometry Car Fleet - 216
                Geometry Car Fleet - 217
                Geometry Car Fleet - 218
                Geometry Car Fleet - 219
                Geometry Car Fleet - 220
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   Related Documents
          FRA DOTX 218 Deployable Gage Restraint Measurement System (GRMS)
                
                About the FRA DOTX-218
    

    
    
          A train wheel.The FRA Office of Safety owns and operates the DOTX-218 to support its mission to reduce track geometry caused derailments nationwide. In addition, the FRA Office of Research and Development utilized the DOTX-218 to support a wide range of research programs.  The mileage surveyed by the DOTX-218 varies from year to year depending upon operational needs.





A blue train.The DOTX-218:

- Entered service in 2004
- Operates in self-propelled and towed mode
- Is equipped with a track geometry measurement system to measure gage, alignment and track surface
- Is equipped with a Gage Restraint Measurement System. The GRMS utilizes a deployable fifth axle to apply lateral and vertical loads to the rail and then take measurements of the impact to the rail from the forces
- Is equipped with a differential global positional system to provide high accuracy GPS coordinates to each foot surveyed
              
      
    
          Last updated: Sunday, November 17, 2019 U.S. DEPARTMENT OF TRANSPORTATION

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